I'm having some trouble editing the content of a Managed Email Template, I can quite easily modify the content of the Email Template, but when I wish to refer to an unmanaged component, like this:
<messaging:attachment renderAs="PDF" filename="invoice.pdf"> <c:MyComponent/> </messaging:attachment>
I get the error message:
Error: Unknown component c:mycomponent
Does anyone know if its possible to embed an unmanaged component in a managed Email Template?